👉ኦማን፤ መካከለኛው ምስራቅ

🚧የመንገዶች ግንባታ አሠራር እና አተገባበር እየገዘፈ መጥቷል።

💫ለደህንነት አስተማማኝ የሆኑ እና አቋራጭ መንገዶችን ለመገንባት ኢንጂነሮች ሙያቸውን ተጠቅመው በዘመን አመጣሽ ማሽነሪዎችና ቴክኖሎጂ በመጠቀም በአጭር ጊዜ ጋራ እና ቋጥኙን ንደው እና ፈልፍለው የሚያማምሩ መንገዶችን በዚህ መልኩ እየገነቡ ነው።

@etconp

👉የ AUTOCAD ፋይል በ ሞባይል ስልክዎ እና ታብሌትዎ ለመክፈት የሚያገለግልዎ ኣንድሮይድ ኣፕልኬሽን

💫DWG FastView is a mobile app that allows you to view, edit, and create DWG files, which are the standard format for CAD (Computer-Aided Design) drawings. The app is free to download and use, and it does not require registration.

🚧Here are some of the key features of DWG FastView:

* View 2D and 3D CAD drawings
* Edit CAD drawings, including moving, copying, rotating, and scaling objects
* Create new CAD drawings
* Measure objects in CAD drawings
* Add dimensions and text to CAD drawings
* Export CAD drawings to PDF, BMP, JPG, and PNG formats
* Share CAD drawings with others

⏺Summary:this you can open or view autocad file

@etconp

👉Structural Element

💫1:Slab

⏺Slabs is Structural Element for Horizontal Loads: Used to support floor and roof loads

🏷Support

⏺Can be beams, columns, or walls.

🚧Types of Slabs by

💫1. By Support Conditions:

* One-Way Slabs: Supported by beams or walls in one direction. Bending occurs primarily in the direction perpendicular to the supports.
* Two-Way Slabs: Supported by beams or columns in two directions. Bending occurs in both directions.
* Flat Slabs: Supported directly by columns without beams. Require special reinforcement details like drop panels and column capitals.
* Cantilever Slabs: Extend beyond a support at one end

💫2.Reinforcement:

*Reinforced Concrete Slabs: Traditional slabs with embedded steel reinforcement to resist tensile stresses.
* Prestressed Concrete Slabs: Concrete is pre-compressed before loading to improve strength and reduce deflection.
* Post-Tensioned Slabs: High-strength steel tendons are tensioned after concrete has hardened to induce compressive stresses.

💫3.By Shape:

* Flat Slabs: Uniform thickness throughout.
* Waffle Slabs: Have a pattern of voids created during construction to reduce weight and improve stiffness.
* Folded Plate Slabs: Composed of thin, flat plates that are folded to form a rigid, three-dimensional structure.

@etconp

👉Sewage Treatment:

💫Sewage treatments are classified as preliminary treatment, primary treatment, secondary treatment and tertiary treatment.

🚧1. Preliminary treatment: This is to remove floating materials, settlable inorganic solids, fats, oils and grease. Various units used in this process are:

(a) Screens – for removing floating materials
(b) Grit chambers – for grinding coarse sand
(c) Comminutors – for grinding coarse solids
(d) Skimming tanks – for removing false, oils and grease
(e) Floating units – for removing fine solids

🚧2. Primary treatment: It is to remove large suspended organic matter. Primary sedimentation tanks or primary settling tanks or primary clarifiers used for this treatment.

🚧3. Secondary treatment: This is to remove organic matter and the residual suspended material by biological unit processes.

🚧4. Tertiary treatment: This is to remove dissolved and suspended materials such as inorganic compounds of nitrogen and phosphorous residual organic matter, etc.

@etconp

👉ብዙውን ጊዜ ኤክስካቫተር መሬት ብቻ የሚቆፍር ማሽን ብቻ አድርገን የምንቆጥር ብዙዎችን ነን።

💫ማሽኑ ሌሎች በርካታ ሥራዎችን በመከወን ፕሮጀክቶች ተቀላጥፈው እንዲሠሩ በማድረግ አይተኬ ሚና አለው።

🚧አሁን ደግሞ ኤክስካቫተር ረጃጅም ሕንፃዎችንም ማፍረስ እንደሚችል መረጃዎች እያሳዩ ነው።

⏺እንዲያውም ሕንፃዎችን በብልሀት ለማፍረስ ኤክስካቫተሮችን መጠቀም የተሻለ መንገድ ነው ይባላል።

⏺ከሁሉም በላይ ኤክስካቫተሩን ማን ሰቀለው? ማን ያወርደዋል? በሚል ለሚነሱ ጥያቄዎች ማሽኑን ከላይኛው የሕንፃው አናት ላይ የሚሰቀለው ግዙፍ የሆኑ የማንሻ ክሬኖችን በመጠቀም ሲሆን፣ የሚወርደው ግን የሕንፃውን አካላት በጥንቃቄ እየሸረፈና እያፈራረሰ በመጨረስ ነው።

@etconp

ታምራት  ፕሌት እና ጄቦልት አቅራቢ

♧ ሁሉን በአንድ ቦታ ለሁሉም ቅርብ

📍ኢትዮጵያ ዉስጥ የትም እንልክሎታለን

♧ ይደውሉልን ያማክሩን

0904040477
0911016833

👉Types of stone used in stone mansory

💫A) Igneous stones

⏺These stones are obtained from igneous rocks, formed from the cooling and solidification of magma generated within the Earth at high temperatures during volcanic activity.

⏺They are generally used for purposes that require strength and durability, such as kerbstones, countertops, floorings, and breakwaters.

⏺The igneous stone ranges from very soft rocks such as pumice and scoria to somewhat harder rocks such as tuff and hard rocks such as granite and basalt.

💫B) Sedimentary stones

⏺They are obtained from sedimentary rocks that are formed by accumulation and cementation of mineral grains (sediments) transported by wind, water or ice to a basin or by precipitation at a site.
⏺There are mainly two types of sedimentary stones used in masonry work, limestone and sandstone.
⏺One of the sedimentary rocks is Limestone that is composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate.

⏺Limestone is the main construction material and used in various fields such as a building material, as aggregate for the base of roads, as white pigment or filler in products such as toothpaste or paints, and as a chemical feedstock.

⏺On the other hand, sandstone is an elastic sedimentary rock composed mainly of sand-sized minerals (mostly quartz and/or feldspar) or rock grains.
⏺It is relatively soft, making it easy to change as the required shape.

⏺Typically used as flooring or paving material, it has also been used for artistic purposes to create ornamental fountains and statues.

💫C) Metamorphic stones

⏺They are obtained from metamorphic rocks, which are pre-existing rocks that have been altered by great heat and/or pressure or by chemical conditions.

⏺They have traditionally been used for carving statues, and as facing in many Byzantine and Renaissance Italian buildings. Slate and marble are metamorphic stones commonly used in the building industry.

⏺Slates are typically used for flooring, roofing, and countertops whereas marbles are suitable for wall-cladding, roofing, flooring, and all other interior and exterior applications.

@etconp

👉What types of bituminous do we use for the binder course layer?

💫The type of bitumen used for the binder course layer in asphalt pavement depends on factors such as climate, traffic loading, local standards, and performance requirements. Below is a concise overview of the bitumen types commonly used for binder courses, based on standard practices and specifications.

❇️Common Bitumen Types for Binder Course

1. Performance-Graded (PG) Bitumen (Superpave System):
   - Description: PG bitumen is selected based on high and low temperature performance, ensuring resistance to rutting, fatigue, and thermal cracking.
   - Common Grades:
     - PG 64-22: Widely used for moderate climates and medium to heavy traffic. Suitable for regions with maximum pavement temperatures up to 64°C and minimum temperatures down to -22°C.
     - PG 70-22: Used for hotter climates or heavier traffic loads to improve rutting resistance.
     - PG 58-28: Suitable for colder climates to enhance low-temperature cracking resistance.
   - Application: Most common for binder courses in modern specifications (e.g., AASHTO M323, Superpave). The binder course requires a balance of stiffness and flexibility, making PG 64-22 a typical choice for standard conditions.

2. Penetration-Grade Bitumen (Traditional System):
   - Description: Classified by penetration value (e.g., 60/70 or 80/100), indicating the bitumen’s hardness. Used in regions following older standards (e.g., ASTM D946, EN 12591).
   - Common Grades:
     - Pen 60/70: Suitable for moderate to hot climates and medium to heavy traffic. Offers good rutting resistance and durability.
     - Pen 80/100: Used in cooler climates or lighter traffic conditions for better flexibility.
   - Application: Common in regions not using PG grading, such as parts of Asia, Africa, or Europe. Pen 60/70 is often preferred for binder courses due to its balance of stiffness and workability.

3. Polymer-Modified Bitumen (PMB):
   - Description: Bitumen modified with polymers (e.g., SBS, EVA) to enhance elasticity, rutting resistance, and fatigue performance.
   - Common Grades: Examples include PG 76-22 or proprietary PMB grades (e.g., PMB 45/80-65 in EN standards).
   - Application: Used for high-traffic roads, extreme climates, or where enhanced durability is needed (e.g., highways, airports). PMB is increasingly common for binder courses in heavy-duty pavements to reduce deformation under load.

4. Viscosity-Graded Bitumen (Less Common):
   - Description: Classified by viscosity at 60°C (e.g., AC-20, AC-30 per ASTM D3381).
   - Application: Rarely used for modern binder courses but may be specified in older or region-specific standards. Equivalent to PG grades (e.g., AC-20 ≈ PG 64-22).

⭐️Selection Criteria

- Climate:
  - Hot climates: Use stiffer bitumen (e.g., PG 70-22, Pen 60/70) to resist rutting.
  - Cold climates: Use softer bitumen (e.g., PG 58-28, Pen 80/100) to resist thermal cracking.
- Traffic Loading:
  - Heavy traffic (e.g., highways, truck routes): Prefer PG 70-22 or PMB for better rutting and fatigue resistance.
  - Light to medium traffic: PG 64-22 or Pen 60/70 is typically sufficient.
- Local Standards:
  - Follow regional specifications (e.g., AASHTO for the U.S., EN for Europe, or local DOT guidelines).
  - Example: U.S. projects often use PG grades, while some countries in Asia or Africa may specify Pen 60/70.
- Mix Design Requirements:
  - Binder course mixes typically require 4.5–6.0% bitumen by weight, optimized during mix design (e.g., Superpave or Marshall method).
  - Ensure compatibility with aggregates and additives (e.g., anti-stripping agents).

🎲Typical Choice for Binder Course

- Most Common: PG 64-22 (Superpave) or Pen 60/70 (penetration grade) for standard binder courses in moderate climates with medium to heavy traffic.

@etconp